ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,902, issued on May 13, was assigned to The Nielsen Co. (US) LLC (New York).

"Signature matching with meter data aggregation for media identification" was invented by Daniel Nelson (Tampa, Fla.) and Raghuram Ranganathan (Tampa, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Example apparatus disclosed herein to implement signature matching with meter data aggregation for use in media identification applications include a match job aggregator to aggregate batches of meter data from a meter to form aggregated meter data associated with the meter, and a hash matcher to identify a valid hash key match between meter hash keys generated from meter sig...